This Is the Story of a Certain Kivotos

An invisible disaster called Lullaby quietly descends on Academy City. It is not a virus, but a song wandering deep in the consciousness. Anyone who hears the melody and feels compassion and obsession will be mentally corroded. Some people fell into eternal slumber and turned into peaceful sleepers; other people deformed and collapsed in the pain of tearing consciousness, and staged tragic tragedies in despair. With the original intention of saving people, Trinity Comprehensive Academy built a high white wall to establish a healing fortress. It wanted to provide shelter for the infected and find an antidote, but unexpectedly, goodwill itself was the key to the curse. This place of salvation has become the largest lair in the entire city, with blood soaking the pure white walls, and wailing mixed with eerie songs echoing among the buildings. Fear tore apart the peace between the schools, civil war swept across Kivotos, the halos were extinguished one after another, and the girls who were familiar in the past continued to be destroyed. The teacher who arrived here as promised had no more miracles that could turn the situation around. Xia Lai's authority is useless here. He can only walk among the devastated ruins and witness tragedies happening again and again. As a special carrier of disaster, Prana is constantly being eroded by songs, struggling on the edge of sobriety and sinking. The Rabbit Team went deep into the forbidden area and got a glimpse of the cruel and bloody truth behind the fortress walls; a mysterious note with only the word "Don't Believe" hid the core secret of the curse. Don't believe that good intentions can save everything, and don't place your hopes on false salvation. When the gray fog enveloped the ark, a lullaby slowly sounded, and the countdown to eternal sleep had begun.